// Set frequency to 433 MHz ELECHOUSE_cc1101.setMHZ(433);
Note: Pins 1–10 are the 1.27mm pitch castellation pads along the module edges. Pin 11 (ANT) and Pin 12 (GND) are typically the two large pads near the antenna area.
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The Arduino Mega 2560 has its own set of hardware SPI pins located on the ICSP header. The default SPI pins are , with 53 (SS) . You must adjust your connections accordingly. e07-m1101d pinout
| Pin | Name | Direction | Description | |-----|----------|-----------|-----------------------------------------------| | 1 | GND | Power | Ground (0V) | | 2 | VCC | Power | Power supply (1.8V – 3.6V DC) | | 3 | RXD | Input | UART Receive (Connect to TX of host MCU) | | 4 | TXD | Output | UART Transmit (Connect to RX of host MCU) | | 5 | AUX | Output | Indicator pin (Low = busy, High = ready/idle) | | 6 | M0 | Input | Mode setting pin 0 (Internal pull-down) | | 7 | M1 | Input | Mode setting pin 1 (Internal pull-down) | | 8 | RST | Input | Reset (Active low; pull high for normal run) | | 9 | NC | – | No connection (leave floating) | | 10 | GND | Power | Ground (0V) | | 11 | ANT | RF | Antenna (50Ω, usually via a hole/pad) | | 12 | GND | Power | Ground (0V) |
Further research is needed to fully explore the capabilities and limitations of the E07-M1101D pinout. Some potential areas of investigation include:
The standard E07-M1101D module features a configuration with a 2.54mm pitch, making it exceptionally easy to use with standard breadboards and jumper wires. // Set frequency to 433 MHz ELECHOUSE_cc1101
Some variants replace pin 12 with GND or ANT_SEL . Always verify with your specific datasheet.
: Must be connected to 3.3V ; connecting to 5V will likely damage the module. CSN : Connect to a digital pin (often D10 on Arduino).
Understanding its pinout is critical for correct integration, as incorrect wiring can damage the module or degrade RF performance. The default SPI pins are , with 53 (SS)
| E07-M1101D Pin | Pin Name | ESP8266 Pin | Dn Label | NodeMCU GPIO | | :--- | :--- | :--- | :--- | :--- | | 1 | GND | GND | GND | GND | | 2 | VCC | 3V3 | 3V3 | 3.3V | | 3 | GDO0 | D4 | GPIO 2 | GPIO 2 | | 4 | CSN | D8 | GPIO 15 | GPIO 15 | | 5 | SCK | D5 | GPIO 14 | GPIO 14 | | 6 | MOSI | D7 | GPIO 13 | GPIO 13 | | 7 | MISO | D6 | GPIO 12 | GPIO 12 | | 8 | GDO2 | RX | GPIO 3 | GPIO 3 |
Understanding the is the first step to creating robust wireless links between your microcontrollers. This module, based on the trusty CC1101 chip, offers a great balance of range, low power consumption, and flexibility at an affordable price. By connecting the GND, VCC, SPI pins, and GDO pins correctly to a 3.3V compatible board like the ESP32 , you can quickly create wireless projects capable of transmitting over half a kilometer.
(Active Low). Initiates SPI communication when pulled low by the MCU. 5 SCK
Since most Arduinos run at 5V logic, and the E07-M1101D is a 3.3V device, for the SPI pins (SCK, MOSI, CSN). The MISO pin from the module is 3.3V, which is safe for the Arduino's 5V input pins. You can connect the module's VCC to the Arduino's 3.3V output pin . A standard connection pattern is as follows:
The module features a standard 2x4 pin header. The pins are clearly marked on the module's board, ensuring you can avoid connection mistakes. Below is the definitive pinout for the , which you can rely on for all your projects.